From patchwork Fri May 15 14:36:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11551867 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7BC69913 for ; Fri, 15 May 2020 14:37:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 65EE5207BB for ; Fri, 15 May 2020 14:37:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="Fil8zzWG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727772AbgEOOhj (ORCPT ); Fri, 15 May 2020 10:37:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35660 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1727082AbgEOOhh (ORCPT ); Fri, 15 May 2020 10:37:37 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EC645C05BD09; Fri, 15 May 2020 07:37:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=oMznyGWmUnH+800kT8BMkDZAQHI6XtvfS5jJWouEfDQ=; b=Fil8zzWGgM7bTiLZqcGMW+YJ5z KWiKqxsF9PsHBsoGTjF3M1/6BpcRcrB87gg7fSSrUKG2ViuiDFILsVXTAGiiQFvWZl7302yJv2QDp 2gdx1QAdET+uvFc0ze5HduS8IJ9srBZdOqL/1nqMHeCh3YBZQaMxq/bdZHgdR67JaPY2iVoS1shDo 6pyU9IPRQ9Q52AD4zwxw4+qQ7zeiwXt3usfWVUxDx+fAryeslEs5RvNsfp0pYwplX4l6i6toHPASG mV2sWCHOlJLsWvBZ89rDzt4kZI4unFON90otMsIMyf+zqnwfQ1s79AFeTZmzqJZZ6+kGlXAlM4ASM cgFW93ag==; Received: from [2001:4bb8:188:1506:c70:4a89:bc61:2] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jZbSZ-000457-1G; Fri, 15 May 2020 14:37:11 +0000 From: Christoph Hellwig To: Andrew Morton , Arnd Bergmann , Roman Zippel Cc: Jessica Yu , Michal Simek , x86@kernel.org, linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org, linux-fsdevel@vger.kernel.org Subject: [PATCH 08/29] alpha: use asm-generic/cacheflush.h Date: Fri, 15 May 2020 16:36:25 +0200 Message-Id: <20200515143646.3857579-9-hch@lst.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200515143646.3857579-1-hch@lst.de> References: <20200515143646.3857579-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Alpha needs almost no cache flushing routines of its own. Rely on asm-generic/cacheflush.h for the defaults. Signed-off-by: Christoph Hellwig --- arch/alpha/include/asm/cacheflush.h | 28 ++++++---------------------- 1 file changed, 6 insertions(+), 22 deletions(-) diff --git a/arch/alpha/include/asm/cacheflush.h b/arch/alpha/include/asm/cacheflush.h index 89128489cb598..636d7ca0d05f6 100644 --- a/arch/alpha/include/asm/cacheflush.h +++ b/arch/alpha/include/asm/cacheflush.h @@ -4,19 +4,6 @@ #include -/* Caches aren't brain-dead on the Alpha. */ -#define flush_cache_all() do { } while (0) -#define flush_cache_mm(mm) do { } while (0) -#define flush_cache_dup_mm(mm) do { } while (0) -#define flush_cache_range(vma, start, end) do { } while (0) -#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) -#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 -#define flush_dcache_page(page) do { } while (0) -#define flush_dcache_mmap_lock(mapping) do { } while (0) -#define flush_dcache_mmap_unlock(mapping) do { } while (0) -#define flush_cache_vmap(start, end) do { } while (0) -#define flush_cache_vunmap(start, end) do { } while (0) - /* Note that the following two definitions are _highly_ dependent on the contexts in which they are used in the kernel. I personally think it is criminal how loosely defined these macros are. */ @@ -59,20 +46,17 @@ flush_icache_user_range(struct vm_area_struct *vma, struct page *page, mm->context[smp_processor_id()] = 0; } } -#else +#define flush_icache_user_range flush_icache_user_range +#else /* CONFIG_SMP */ extern void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, unsigned long addr, int len); -#endif +#define flush_icache_user_range flush_icache_user_range +#endif /* CONFIG_SMP */ /* This is used only in __do_fault and do_swap_page. */ #define flush_icache_page(vma, page) \ - flush_icache_user_range((vma), (page), 0, 0) + flush_icache_user_range((vma), (page), 0, 0) -#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ -do { memcpy(dst, src, len); \ - flush_icache_user_range(vma, page, vaddr, len); \ -} while (0) -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ - memcpy(dst, src, len) +#include #endif /* _ALPHA_CACHEFLUSH_H */